Let S be the statement: The reciprocal of any irrational number is irrational. The reciprocal of a nonzero real number x is 1 x . Prove S in two ways: by contraposition and by contradiction. (a)

Factor this polynomial completely x^2-64

(mc 02.03) what set of reflections and rotations would carry rectangle abcd onto itself? reflect over the y-axis, reflect over the x-axis, rotate 180° rotate 180°, reflect over the x-axis, reflect over the line y=x reflect over the x-axis, rotate 180°, reflect over the x-axis rotate 180, reflect over the y-axis, reflect over the line y=x

Two years ago a man was six times as old as his daughter. in 18 years he will be twice as old as his daughter. determine their present ages.